Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer
Cuixing Zhou,1 Yimeng Chen,1 Xiaozhou He,1 Zhuojun Zheng,2 Dong Xue1 1Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China; 2Department of Hematology, The Third Affiliated Hospital of Soochow University, Changzhou, People&rsq...
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doaj-7eaf044c52a14c2e99e219e359b0d4cf2020-11-25T04:03:11ZengDove Medical PressOncoTargets and Therapy1178-69302020-11-01Volume 13115951160659207Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate CancerZhou CChen YHe XZheng ZXue DCuixing Zhou,1 Yimeng Chen,1 Xiaozhou He,1 Zhuojun Zheng,2 Dong Xue1 1Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China; 2Department of Hematology, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of ChinaCorrespondence: Dong XueDepartment of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province, People’s Republic of ChinaTel +86-519-6887 1257Email xuedongdx@163.comZhuojun ZhengDepartment of Hematology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province, People’s Republic of ChinaTel +86-519-6887 1092Email zenki_zheng@163.comObjective: The microRNA expression profile of plasma exosomes in prostate cancer (PCa) is of critical importance in the disease exploration. This study aimed to explore the clinical application of exosomal miRNAs as biomarkers for PCa.Methods: Exosome-like vesicles of PCa patients and healthy controls were purified by differential centrifugation. The purified vesicles within the ranges of 50 and 100 nm were classified as exosomes according to the results of transmission electron microscopy and Western blot. Both, in vitro and in vivo, validations were performed by small RNA sequencing, CCK8, RT-qPCR, flow cytometry, Western blot, transwell and immunofluorescent staining assays.Results: High-throughput sequencing identified that 94 miRNAs were differentially expressed in PCa patients in comparison with healthy controls (P< 0.01; fold change ≥ 2). Among them, 64 miRNAs were upregulated, and 30 miRNAs were downregulated. In comparison to the healthy controls, the expression levels of miR-217 were significantly upregulated, while miR-23b-3p were significantly downregulated in the exosomes and serum collected from PCa patients. Both, in vitro and in vivo, studies revealed that exosomes secreted by PCa cells with up-regulated miR-217 levels promoted cell proliferation and invasion; meanwhile, the exosomes with up-regulated miR-23b-3p levels inhibited cell proliferation and invasion. The epithelial–mesenchymal transition process may have been involved in the above-mentioned regulation.Conclusion: This study identified the dysregulated expression of exosomal miRNAs in PCa patients, including miR-217 and miR-23b-3p, by validating their function on proliferation and invasion in PCa cells. This regulation may have been affected by the epithelial–mesenchymal transition process, suggesting that they can be used as potential targets in the diagnosis and treatment of PCa.Keywords: exosome, miR-217, miR-23b-3p, prostate cancerhttps://www.dovepress.com/functional-implication-of-exosomal-mir-217-and-mir-23b-3p-in-the-progr-peer-reviewed-article-OTTexosomemir-217mir-23b-3pprostate cancer |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhou C Chen Y He X Zheng Z Xue D |
spellingShingle |
Zhou C Chen Y He X Zheng Z Xue D Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer OncoTargets and Therapy exosome mir-217 mir-23b-3p prostate cancer |
author_facet |
Zhou C Chen Y He X Zheng Z Xue D |
author_sort |
Zhou C |
title |
Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer |
title_short |
Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer |
title_full |
Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer |
title_fullStr |
Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer |
title_full_unstemmed |
Functional Implication of Exosomal miR-217 and miR-23b-3p in the Progression of Prostate Cancer |
title_sort |
functional implication of exosomal mir-217 and mir-23b-3p in the progression of prostate cancer |
publisher |
Dove Medical Press |
series |
OncoTargets and Therapy |
issn |
1178-6930 |
publishDate |
2020-11-01 |
description |
Cuixing Zhou,1 Yimeng Chen,1 Xiaozhou He,1 Zhuojun Zheng,2 Dong Xue1 1Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of China; 2Department of Hematology, The Third Affiliated Hospital of Soochow University, Changzhou, People’s Republic of ChinaCorrespondence: Dong XueDepartment of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province, People’s Republic of ChinaTel +86-519-6887 1257Email xuedongdx@163.comZhuojun ZhengDepartment of Hematology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu Province, People’s Republic of ChinaTel +86-519-6887 1092Email zenki_zheng@163.comObjective: The microRNA expression profile of plasma exosomes in prostate cancer (PCa) is of critical importance in the disease exploration. This study aimed to explore the clinical application of exosomal miRNAs as biomarkers for PCa.Methods: Exosome-like vesicles of PCa patients and healthy controls were purified by differential centrifugation. The purified vesicles within the ranges of 50 and 100 nm were classified as exosomes according to the results of transmission electron microscopy and Western blot. Both, in vitro and in vivo, validations were performed by small RNA sequencing, CCK8, RT-qPCR, flow cytometry, Western blot, transwell and immunofluorescent staining assays.Results: High-throughput sequencing identified that 94 miRNAs were differentially expressed in PCa patients in comparison with healthy controls (P< 0.01; fold change ≥ 2). Among them, 64 miRNAs were upregulated, and 30 miRNAs were downregulated. In comparison to the healthy controls, the expression levels of miR-217 were significantly upregulated, while miR-23b-3p were significantly downregulated in the exosomes and serum collected from PCa patients. Both, in vitro and in vivo, studies revealed that exosomes secreted by PCa cells with up-regulated miR-217 levels promoted cell proliferation and invasion; meanwhile, the exosomes with up-regulated miR-23b-3p levels inhibited cell proliferation and invasion. The epithelial–mesenchymal transition process may have been involved in the above-mentioned regulation.Conclusion: This study identified the dysregulated expression of exosomal miRNAs in PCa patients, including miR-217 and miR-23b-3p, by validating their function on proliferation and invasion in PCa cells. This regulation may have been affected by the epithelial–mesenchymal transition process, suggesting that they can be used as potential targets in the diagnosis and treatment of PCa.Keywords: exosome, miR-217, miR-23b-3p, prostate cancer |
topic |
exosome mir-217 mir-23b-3p prostate cancer |
url |
https://www.dovepress.com/functional-implication-of-exosomal-mir-217-and-mir-23b-3p-in-the-progr-peer-reviewed-article-OTT |
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